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P0123 Diagnostic Trouble Code Discussion for May 2007

Throttle Position Sensor/APPS High

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Trouble Ticket Help Requests for DTC P0123
Help Request Posted
2000 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on VIN: 1J4GW48S4Y
P0123: Throttle Position Sensor Circuit High Voltage. the wiring for both circuits has been checked from pcm to tps and s/c switch.the vehicle will run fine until codes set.tps signal voltage at idle will jump from .84 to 3.93 and s/c switch will no longer work.the codes will sometimes set within 5 miles or somet...
May 02, 2007